Remote Control Terminal Dual Wireless Power Management
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Solution Overview
Problem
Current RF remote controls for information processing devices like television receivers face challenges in power consumption due to unnecessary activation of communication units when not required, especially when the information processing apparatus is unpowered or communication is not established, leading to increased power usage.
Innovation Solution
Implementing a dual wireless communication system where the remote control terminal and information processing apparatus interact to manage the startup and shutdown of higher-speed wireless communication units only when necessary, using a lower-speed RF4CE standard for control signals and a higher-speed wireless LAN for video and audio data transmission, and incorporating a motion detection unit to minimize power consumption by detecting unoperated status and sending stop instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the high-speed wireless communication unit is always activated in the remote control terminal, then the video data and audio data can be transmitted in real-time, but the power consumption increases significantly
Solution Approach 1:
The patent applies dynamics by making the wireless communication unit's operational state changeable - switching between active and inactive states based on operational needs. The control unit activates the wireless communication unit only when video or audio data transmission is required, and deactivates it during idle periods, thereby adapting the system's power consumption to actual usage patterns.
Solution Approach 2:
The patent implements periodic action through the motion detection unit that continuously monitors user activity. When no motion is detected for a predetermined period, the system transitions to a low-power state. This periodic monitoring and state transition reduces power consumption while ensuring the system becomes responsive again when needed.
2Loss of time
If the wireless communication unit is activated immediately upon user input, then the data transmission responsiveness is improved, but unnecessary power consumption occurs when the information processing apparatus is unpowered or communication is not established
Solution Approach 1:
The patent uses feedback mechanisms where the remote control terminal receives status information from the information processing apparatus about whether it is powered on and whether communication is established. Based on this feedback, the control unit intelligently determines whether to activate the wireless communication unit, avoiding unnecessary power consumption while maintaining responsiveness when conditions are favorable.
Solution Approach 2:
The patent applies preliminary action by having the control unit check communication status and power state before activating the wireless communication unit. This preliminary verification ensures that the system only consumes power when activation will be productive, preventing energy waste while maintaining readiness for immediate data transmission when conditions permit.
3Ease of operation
If the remote control terminal continuously monitors for user input, then the responsiveness to user commands is improved, but the power consumption increases during idle periods
Solution Approach 1:
The patent implements periodic action through the motion detection unit that monitors user activity at regular intervals. When no motion is detected for a predetermined period, the system transitions to a low-power state. This periodic monitoring maintains responsiveness to user input while significantly reducing power consumption during extended idle periods.
Data Source
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AI summary
Provided is a remote control terminal, including: a first terminal-side wireless-communication unit configured to interactively communicate with a control-target information processing apparatus by using a first wireless communication system, to control the information processing apparatus; a second terminal-side wireless-communication unit configured to interactively communicate with the information processing apparatus by using a second wireless communication system, the second wireless communication system being higher in speed than the first wireless communication system; a camera unit configured to obtain video data; and a first controller configured to control the second terminal-side wireless-communication unit to transmit the video data obtained by the camera unit to the information processing apparatus by using the second wireless communication system.